Tamping device.



-PATENTED DEG. 3, 1907.

J. P. KANE. TAMPINGVDEVICE.

APPLICATION FILED MAR. 11.1907.

UNITED sTATEs .PATENT onirica- JOSEPH P. KANE, OF WORCESTER, MASSACHUSETTS, ASSIGNOR lO HIMSELF, MICHAEL J.

KANE, AND RICHARD P. KANE, OF WORCESTER, MASSACHUSETTS. y

TAMPING DEVICE.

Specification of Letters Patent.

.Patented nec. 3,2190?.

To all whom 'tt may concern:

Be it known that I, JOSEPH P. KANE, a citizen of the United States, residing at Worcester, in the county of Worcester and State of Massachusetts, have invented a new and useful Tamper, of which the following is a specification.

ln the production of building blocks from concrete and other kinds of plastic material which are molded by the so-called "dry method, the ordinary practice is to tamp the molds by hand.v This is not only a tedious operation which requires the greateststrength and endurance on the part of the operatives, but it also adds greatly to the cost of the building blocks.

The principal object of the present invention is to provide practicable and ellicient mechanism whereby the blocks can be tamped by power Without necessitating the instalment of an expensive compressed air or other power plant, which can be operated from any ordmary power which may be at hand, which will be capable of any necessary motion and adjustment in order lto provide for tampingl the full length of the molds, which can be adjusted in such a way as to regulate the force oi' the blows delivered, which can be readily operated by a comparatively unskilled laborer, and which by the application of different tools thereto may be used for analogous purposes such asjtamping sand molds, peen hammering stone, and the like.

Further objects and advantages of the invention w ill appear hereinafter.

Reference is to behad to the accompanying drawings which illustrate a preferred embodiment of the invention, and in which Figure 1. is a front elevation of a device shown as used ier tamping a building block mold. Fig. 2 is a side elevation of the same. Fig. 3 is a side elevation of a portion of the tamping rod on an enlarged scale, and Fig. 4 is a horizontal sectional View through the tam )ing rod showing the guide therefor.

The machine is supported by means of a stationary frame 10 which carries a shaft 11 through which power is transmitted from a pulley 12 or the like. A second shaft or rod 13 is p'ivotally connected with the frame 11 and supports a swinging frame 14. The shaft 11 delivers power through sprocketchain 15 or any other desired power transmitting mechanism to a shaft 16 on the swinging frame which is provided with a lifting device preferably m the form of a pair of s rocket wheels 17 carrying chains i8 whic operate sprocket wheels 19 ona lower shaft 20. These chains are spaced apart and are rovided with a series of bars 21 extending etween them.V The chains and bars are so located and proportioned that the bars e1;- tend substantially across the entire face of the swinging frame, and as will be. obvious, the rotation of' the shaft 1 1 moves the bars in succession upwardly along the front of the frame so that they may engage a tamping rod 22 and lift it. As the bars pass over the top wheels 17 they will become disengaged from the rod and allow the same to drop. The tamping rod is provided with one or more lugs 23 extending outwardly therefrom, each of these lugs preferably being made integral with the rod by means of welding or in any other desired way.

In order to prevent a sudden blow being delivered tothe rod, each lug is provided with a'pla'te 24 below it. This plate has a curved end 25 which extends beyond the end of the lug 23 so that as the bar moves outwardly from it, it will permit the rod to drop without any danger of the bar engaging thelug itself. The plate 24 is supported from the lug 23 by pins or bolts 26 and separated therefrom by springs 27 which 'act as buffers and prevent a sudden blow from being delivered to the lug. It is to be observed that the tamper rod is shown as being provided with a plurality of these lugs and bull'ers located on different sides olf-vl the rod and at different heights. This providesfor regulating the strength of the blows delivered by the tamper. .When the heaviest blow is to be delivered the tamper is turned so that the lowest lugis in position to be engaged by the bars 21,. They will then lift the tamper 4to the highest position at each operation. Il it is desired to reduce the force of the blows, the rod is turned so'that one of the other lugs is in position to be engaged by the bars.

On one side of the tamper there is no lug, and when this side is turned toward the bars they can operate without operating the tamper. ln order to provide for readily adjustln'g the tamper in this way, a guide plate 30 is mounted on the swinging frame and provided with a passage 31. It will be obsenyed that a portion 32 of the tamper rod is cylindrical, while another portion is non-cylindrical, in the present instance polygonal. The passage 31 is of the same shape as the polygonal portion 33 of the tamper, so that in the ordinary operation of the tamper this passage serves as a guide therefor, but if it is daesired to adjust the same to regulate the force of the blows dev livered the tamper is raised until the polygyonalportion of the rod is above the plate 30, and then the cylindrical portion 'being in the passage 31, the tamper can be turned soy as to present any desired one the traveling bars 21.

The guide plate 30 and the corresponding plate at the top oi theframe together with of the lugs to A tierods 34 constitute a frame which supports and guides the tamper rod and which 1s movable along the swinging frame to permit th'e tamper to o crate' on the diierent parte of themold. n order to accomplish this result the plates .move in tracks or swinging frame. f

ways near the top 'and bottom lof the It will be noticed that the bars 21 are.

sufficiently long to engage the lugs or buffers in all positions of the frame .which supports the tamper. This frame may be moved acrossthe swinging frame in any desired way,

but it is shown as operated by meansof a' lever 36 which is pivoted to a bar 37 which extends upwardly from the swinging frame.

parallel with .the tamperrod, and thatl the` travel of the bars in this plane is of a length equal at least to the distance between the highest and lowest lugs 23, so that any desired one of them may be operated by the bars. When the vertical adjustment of the tamper rod is not needed the rotary path of the bars 21 might be a circle instead of that shown.

The tamper rod 22 is provided with a collar 40 adapted to engage av buffer 41 when the tamper escends, so that if the adjustment is such that the tamper Will not strike the mold in its descent, a sudden blow will be avoided. The tamper rod also is provided i with ahook 42 adzpted to engagea hook'43 weight 45 thereon, y .c j In order to provide for swinging the swingextending outwar ly from the stationary frame, so that the tamper may be raised and held in raised position. i In order to provide for counter-balancing the Welght of t e parts which in this instance are shown as locatedon one side of the 'swinging lframe, this frame is provided with a rearwardly extending projection 44 having a ing frame forward and backto permit o eration throughout the width of the mol the,

It will vbe observed that the slot therein, anda pin secured to avana preferred form of the invention, I am aware that many modifications may be made therein without departing from the scope of the inventionas expressed in the claims. Therefore, I do not wish to he limited to the particular form shown', but

' What I do claim is:-

` 1. In a tam ing machine, the combination of a horizonta shaft, a frame pivoted thereon to swing -in a vertical plane, a tamper mounted on the frame 'and movable in the plane in which it swings, and a hand grip on the frame by which it may be swung to different inclinations.

2. In a tampingrmacliine, the combination j of a depending ame swinging on .a horizontal axis, a reciprocable tamper thereon, means for o erating the tamper, a counterwei ht on t e frame to hold thesame normal y in substantially vertical position, and a hand grip on theframe by which it maybe lswi'ing out of vertical position. l

3. In a tamping machine, the combination of a track, a ramemovable thereon, atamping device supported by the frame, and a pivoted lever connected with the frame for moving it along the track.

4. In atampmg machine, the combination of a swinging frame, a track thereon, a second frame movable along the tracks, a tamping device supported by the second frame, and a lever pivoted to the swinging frame and connected with the second frame for moving the latter along the track.

5. In a tamping machine, the combination of a main frame, a track extendin along the frame, a second trame mounte to move along the track, a tam ing device sup orted by the second frame, t e main frame llavin an extension projecting beyondthe secon frame, a lever pivotally connected at its end .with the extension and having a 'longitudinal slot therein, and a pin secured t`o the movable frame and extending through said slot, whereby the lmotion of the lever will move the second frame.

6. In a tamping machine, the combination' of a movable frame,l a tamping device supported thereby, a lever having a lon itudinal e movable frame and extendin through 'said slot whereby the motion of t e lever will move the frame.

peen hammering rod j 7. In a tamping machine, the combination, of a movable guide plate and a tamper rod, said tamper rod being of a shape to be guided by said plate and having means .whereby it may be turned on its 'axis when moved vertically to a certain.' position with respect to the plate Without removing it from the plate. n

8. In a tamping machine, the combination of a swinging frame, a second frame movable along the swinging frame, a taniping device supported by the second frame, and a guide plate en the second frame, said tamping device comprising a rod having a cylindrical portion and a non-cylindrical portion., said` guide plate having a passage of substantially the same shape as said non-cylindrical portion and of a size sullcient to permit the cylindrical portion to pass freely therethrough, whereby the tamping rod may be moved lo dill'erent vertical positions with respect to the guide plate and turned therein without removing' 1t therefrom when the cyliiidrieal portion is in the guide plate.

9. In a tamping machine, the combination of a frame, a tanlper thereon comprising a rod having a cylindrical and a non-cylindrical portion, a guide plate on the frame having a passage of substantially the same shape as the non-c vliiidrical portion, where.- by the tamper rod may be turned to di'llerent angles on the frame, and means for lifting the tamper rod to diilerent heights accord# ing to its position with respect to the guide.

1U. ln a tamping machine., the combination of a frame having a guide plate provided` with a polygonal passage therethrough,

and a tamper rod. having a portion thereof ol' a form substantially like that of the polygonal passage and a portion of cylindrical lorn'i whereby the tamper rod may be guided, when in a certain position, by the passage and moved to bring the cylindrical portion in the passage to 'permit the rodto be turned.

11. In a tamping machine, the combination of a frame having a guide plate provided. with a polygonal passage tl1ercthrougli,and

- a tamper rod ,having a portion thereof of a form substantially like t iat of the polygonal passage and a ortion of cylindrical form, said rod having ugs on its sides by which it may be lifted.

12. In a tainping device, the combination of a guide plate having a polygonal passage therethrough, a tamper rod having a erosssection of substantially the same shape as said passage hutfprovided with a cylindrical cross-section at one point, whereby the rod may be turned toi present its diil'erontfaces in diilerent positions with respect to the passage, said rod having lugs on all ol its sides except one by which. it may be lifted.

13. A tamping machine, comprising a guide plate having a polygonal passage, and a tamping rod having a cross-swthni similar to the shape of the passage and provided with a circular cross-section at one point, said rod having lugs projecting from its ditlcrent sides, said lugs being located at diil'erent elevations.

14. A tampii'lg machine comprising a guide piatehavingapolygonal passage, and a tamp- 'ing rod having cross-section similar to the shape o'l' the passage and provided with a circular cross-section at one point, said rod having lugs projecting from its diilere'nt sides, said lugs being located at dill'erent elevations, and means l'orengaging any one ol said lugs when located on a certain side of the rody to raise the tamper.

'15. A tamper rod having a polygonal c1 ')ss-section andbcing provided with lugs on all sides but one at dill'erent elevations,

16. A tamper rod having a plurality of lugs on diil'erent sides thereon arranged at different elevations.

17. A tamping rod having lugs projecting in dilferent 4directions therelrom, each lug be ing provided with a plate located below it and resiliently connected with it.

18. A tamping rod havinga lug integral therewith and projecting therefrom, a plate located vbelow the lug and havinga rounded edge extending beyond the end of the lug, and springs between the plate and lug.

1). In a tamping device, the combination of a vertically movable rod having a plurality of lugs arranged at different elevations thereon, and means movable in a plane parallel to the direction of motion of the rod over a distance as great as the distance between the top and bottoni lugs for engaging said lugs to lift the tamping rod.

20. In a tamping device, the combination of a vertically movable rod having a plurality of lugs arranged at different elevations thereon,- and means movable over a distance as great as the distance of the ton from the bottom lug for engaging the lugs ti) move the 'JOSEPH r. KANE.

Witnesses LoUIs W. SOUTIIGATE, ALBERT E. FAY. 

